Photo Credits: (Top Left)
Detail of USGS map showing the National Register boundaries of the
Columbia Historic District in Cedarburg, Wisconsin.
(Top Right) View of Architect Marcel Breuer's International Style
home in Lincoln, Massachusetts. (Photo by Ruth Williams) (Bottom left)
View of the Roxborough State Park Archeological District near Waterton,
Colorado. (Photo by William Tate) (Bottom Right) Detail of a 1987
land survey map defining the property boundaries of Gunston Hall in
Buncombe County, North Carolina. (Photo by Blue Ridge Land Surveying,
Inc.)